Home / 81,905.49-113,064.45-55,063.56

Finding the Fourth Proportional to 81,905.49, 113,064.45 and 55,063.56

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Solution

The fourth proportional to 81,905.49, 113,064.45 and 55,063.56 is: 76,011.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    81,905.49 : 113,064.45 = 55,063.56 : x
  2. Step 2: Convert to fraction form
    81,905.49/113,064.45 = 55,063.56/x
  3. Step 3: Cross multiply
    81,905.49x = 113,064.45 × 55,063.56
  4. Step 4: Simplify right side
    81,905.49x = 6,225,731,202.61
  5. Step 5: Solve for x
    x = 6,225,731,202.61/81,905.49
  6. Step 6: Final answer
    x = 76,011.16

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.